Switching letters is called spoonerism. For example, saying "jag of Flapan", instead of "flag of Japan".
2
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Stressed is Desserts spelled backwards.
130
Floccinaucinihilipilification, the declaration of an item being useless, is the longest non-medical term in the English language.
125
The word 'mortgage' comes from a French law term that means 'death pledge'.
14
The word "listen" contains the same letters as "silent."
135